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Smart Reasoning:

C&E

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Qaagi - Book of Why

Causes

Effects

issues with the substratecausedsolder balls to break from it

the padscausingsolder shorts or solder balls

the fine air bubblescan causesolder ball scattering

a matte finishwill resultin fewer solder balls

defects such as components to crack and the solder paste to splattercausingsolder balls during reflow

a solder mask can also interfere with outgassing in the reflow ovencan causesolder ball splatter

this part of the tinwill causesolder ball

on the conductive pad 3(passive) is setThe solder ball

air bubbles thoughtto causespattering of solder balls

increasingsetsthe solder ball

according to a welding temperature profile reference repair(passive) can be setBGA solder balls

by normal printing of solder paste onto PC board(passive) caused bysolder balls

the reflow of solder paste(passive) are caused bySolder balls

your solder pasteis causingthe solder balls

by normal printing of solder paste onto(passive) caused bysolder balls

by normal printing of solder paste(passive) caused bysolder balls

by normal printing of solder paste onto PC(passive) caused bysolder balls

by normal printing of solder paste onto PC Boards(passive) caused bysolder balls

by the normal printing of solder paste onto PC Boards(passive) caused bysolder balls

Application of heatcausessolder balls

of solder alloys(passive) are composedSolder preforms

defects such as components to crack and the solder paste to splattercausingsolder balls

a ball grid array ... , on the bottom of the substratecomposedof solder balls

by a few things in my process(passive) were caused bythe solder balls

by a few things in my process(passive) were causedthe solder balls

by the rapid melting of the SMT paste during reflow(passive) are caused bysolder balls

by the rapid melting of the SMT paste during reflow(passive) are causedsolder balls

Solder bumps 36are composedof solder balls

infrared heatcausesthe solder balls

a number of process parameters(passive) are caused bySolder balls

by the packaging process(passive) caused bysolder balls

something's causingthe solder balls

Both of these factorscan contributeto solder balls

by normal printing(passive) caused bysolder balls

by normal printing of(passive) caused bysolder balls

by the probe contact(passive) caused bythe solder balls

a reflow ovencausingthe solder balls

a re - flow ovencausingthe solder balls

Solder bridges and/ormay causesolder balls

Poor wet - abilitycan causesolder balls

as longerleadsas longer

a shorthas causeda short

circuit problemsmay causecircuit problems

shortscould causeshorts

in short circuits between the ballscould resultin short circuits between the balls

Solder ball causes We dcausesSolder ball causes We d

in solder joint crackingcan resultin solder joint cracking

to reduced connection pitchcan contributeto reduced connection pitch

in a deflected shape with less severe gradientsresultingin a deflected shape with less severe gradients

in gapresultingin gap

assembly reliability issuescausingassembly reliability issues

the welding gas release(passive) caused bythe welding gas release

118leads118

intermittent circuit contactcausingintermittent circuit contact

a short circuitmay ... causea short circuit

to hold up against production with using tin / lead solder anddesignedto hold up against production with using tin / lead solder and

of tin or tin - containingcomposedof tin or tin - containing

118 ... 126 are heated locally so that the heating of one solder joint 150 does not cause heating of other solder joints 150 , such as those on the opposing surface of the interposer 10leads118 ... 126 are heated locally so that the heating of one solder joint 150 does not cause heating of other solder joints 150 , such as those on the opposing surface of the interposer 10

a short and can be eliminated by washing the board with IPAis causinga short and can be eliminated by washing the board with IPA

shorts or intermittent behaviorcan causeshorts or intermittent behavior

of lead - free solder materialcomposedof lead - free solder material

circuit problemsmay causecircuit problems

a weak ball jointcausinga weak ball joint

to electrical failure and other quality concernsoften leadto electrical failure and other quality concerns

of a leadcomposedof a lead

in a more robust solder jointwill resultin a more robust solder joint

to open circuitswill leadto open circuits

severe , unpredictable damagemight causesevere , unpredictable damage

for the pinsdesignedfor the pins

shortscan causeshorts

shortscausingshorts

of at least one of a SnAgCu , SnAg , and SnAu solder materialcomposedof at least one of a SnAgCu , SnAg , and SnAu solder material

a short circuitmay ... causea short circuit

short circuitcausedshort circuit

bridgingcan causebridging

to bonding failure such gap is formedmay causeto bonding failure such gap is formed

in malfunctioning of the electric circuitcan resultin malfunctioning of the electric circuit

to intermittent failuresleadingto intermittent failures

them to fuse togethercausingthem to fuse together

to failing the testcan leadto failing the test

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Smart Reasoning:

C&E

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